Isolated imprinting mutation of the DLK1/GTL2 locus associated with a clinical presentation of maternal uniparental disomy of chromosome 14

被引：53
作者：
Temple, I. K.
Shrubb, V.
Lever, M.
Bullman, H.
Mackay, D. J. G.
机构：
[1] Univ Southampton, Div Human Genet, Southampton, Hants, England
[2] Southampton Univ Hosp Trust, Wessex Genet Serv, Southampton, Hants, England
[3] Southampton Commun Trust, Dept Commun Child Hlth, Southampton, Hants, England
[4] Salisbury Hlth Care Trust, Wessex Reg Genet Lab, Salisbury, Hants, England
来源：
JOURNAL OF MEDICAL GENETICS | 2007年 / 44卷 / 10期
关键词：
D O I：
10.1136/jmg.2007.050807
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
摘要：
The clinical phenotypes of maternal and paternal uniparental disomy of chromosome 14 ( UPD14) are attributed to dysregulation of imprinted genes. A large candidate locus exists within 14q32, under the regulation of a paternally methylated intergenic differentially methylated region ( IG- DMR). We present a patient with clinical features of maternal UPD14, including growth retardation, hypotonia, scoliosis, small hands and feet, and advanced puberty, who had loss of methylation of the IG- DMR with no evidence of maternal UPD14. This case provides support for the hypothesis that the maternal UPD14 phenotype is due to aberrant gene expression within the imprinted domain at 14q32.
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收藏
页码：637 / 640
页数：4
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